Slides in this set

Slide 1

Slide 2

Energy- classification and costsThere are many different sources of energy which can be classified as: - Non-renewable (finite: e.g. Oil and gas- their exploitation and use will eventually lead to their exhaustion.) - Renewable (e.g. Solar, wind and wave power- flows of nature which are continuous and can be constantly re-used.) - Recyclable (e.g. Reprocessed uranium and plutonium from nuclear power plants, and heat recovery system)…read more

Slide 3

Coal· Produced by deep or opencast mining, creates environmental damage.· Burning it releases greenhouse gases, which contribute to global warming.· Heavy and bulky to transport, which creates further greenhouse gas emissions.…read more

Slide 4

Oil and natural gas · New fields are often in environmentally sensitive areas such as the Arctic. · Their terminals and refineries take up large areas of land · Danger of oil spills and gas leaks. · Burning them releases greenhouse gases.…read more

Slide 5

Nuclear energy · Safety is a major issue · E.g. A major explosion at Chernobyl in the Ukraine spread radiation across Europe in 1986. · Nuclear waste remains radioactive for many thousands of years and is difficult to process and store.…read more

Slide 6

Hydro-electric power · Require large areas of useful land to be flooded behind their dams · The large amounts of vegetation frowned by new lakes decays and releases methane and CO2. · Danger of dam collapse; Sichuan in China…read more